High power single-frequency laser output from a diffusion-bonded monolithic nonplanar Ho:YAG ring oscillator

Haojie Wang, Mingwei Gao*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

In this paper, an experimental investigation of monolithic diffusion-bonded nonplanar Ho:YAG ring oscillator(NPRO) operated at 2.09μm was presented. A theoretical thermal model for the diffusion-bonded NPRO was established, the thermal effect of the diffusion-bonded Ho:YAG NPRO and un-bonded NPRO were calculated and compared in detail. A diode-pumped Tm-YLF solid-state laser was used to pump the diffusion-bonded Ho:YAG NPRO, a stable singlefrequency output power of up to 12.5W was obtained at 2.09μm with a slope efficiency of 46.3%. The beam quality M2-factors were less than 1.3 in both x-and y-directions.

Original languageEnglish
Title of host publication2019 International Conference on Optical Instruments and Technology
Subtitle of host publicationAdvanced Laser Technology and Applications
EditorsZhiyi Wei, Chunqing Gao, Pu Wang, Franz X. Kartner, Franz X. Kartner, Stefan A. Weber
PublisherSPIE
ISBN (Electronic)9781510636521
DOIs
Publication statusPublished - 2020
Event2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications - Beijing, China
Duration: 26 Oct 201928 Oct 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11437
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Country/TerritoryChina
CityBeijing
Period26/10/1928/10/19

Keywords

  • Ho:YAG laser
  • Nonplanar ring oscillator
  • Single-frequency laser
  • Thermal effect

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